这是一款基于 WAN-VACE 的首尾帧视频生成应用。
上传一张起始图和一张结束图，并输入一段动作描述，应用会自动在两张图之间生成连续过渡的视频内容。它更适合做“第一张图逐渐变化成第二张图”的镜头，比如人物动作变化、服装变化、场景切换、角色变身等。
推荐这样使用：
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起始图和结束图尽量选择 同一主体或高度相关主体
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两张图的构图、角度、比例尽量接近，效果会更稳定
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更适合单主体图，不建议一开始就用多人复杂场景
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提示词尽量描述两张图之间的变化方式，而不是单纯重复静态外观
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想让结果更稳定，可以强调“过渡自然、动作连贯、细节清晰、光影自然、画面统一”
推荐输入示例：
起始图中的主体自然过渡到结束图中的状态，动作连贯，镜头稳定，变化平滑，细节清晰，光影自然，整体画面统一。
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